The present invention relates to a process for preparation of triazolo[4,5-d] pyrimidine cyclopentane compounds of formula (I), and pharmaceutically acceptable salts thereof. The invention also provides novel compounds that can be used as intermediates in the process for preparing triazolo[4,5-d] pyrimidine cyclopentane compounds. The process and the intermediates are particularly useful for the preparation of ticagrelor and pharmaceutically acceptable salts thereof.
本发明涉及一种制备式(I)三唑并[4,5-d]
嘧啶环戊烷化合物及其药学上可接受的盐的工艺。本发明还提供了可用作三唑并[4,5-d]
嘧啶环戊烷化合物制备工艺中间体的新型化合物。该工艺和中间体特别适用于制备
替卡格雷及其药学上可接受的盐类。